A7596 datasheet(4/9 Pages) AITSEMI

Part #	A7596

Description	DC-DC CONVERTER/ BUCK (STEP-DOWN) 150KHz, 3A PWM BUCK DC-DC CONVERTER

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Manufacturer	AITSEMI [AiT Semiconductor Inc.]

Direct Link	https://ait-ic.com/

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4 / 9 page

AiT Semiconductor Inc.

www.ait-ic.com

A7596

DC-DC CONVERTER/ BUCK (STEP-DOWN)

150KHz, 3A PWM BUCK DC-DC CONVERTER

REV1.2

- MAY 2009 RELEASED, MAR 2015 UPDATE -

- 4 -

ELECTRICAL CHARACTERISTICS

These specifications apply VIN = 12V for 5.0V options, and VIN = 24V for Adj option, and the operating ambient

temperatures TA = 25°C, Unless otherwise specified

Parameter

Symbol

Conditions

Min.

Typ.

Max.

Unit

Output VoltageNOTE1

VOUT

4.5V≦VIN≦40V

0.2A≦IOUT≦2A,VOUT=3V

ADJ 1.193

1.230

1.267

V

7V≦VIN≦40V

0.2A≦IOUT≦3A

5.0

4.850

5.000

5.150

Efficiency

η

VIN=12V, ILOAD=3A, VOUT=3V

ADJ

90

%

VIN=12V, ILOAD=3A

5.0

80

Feeback Bias Current

IB

VFB=1.3V

(Adjustable Version Only)

10

50

nA

Saturation Voltage

VSAT

IOUT=3ANOTE1,2

1.16

1.4

V

Duty Cycle (ON)

DC

NOTE2

100

%

Duty Cycle (OFF)

DC

NOTE3

0

%

Oscillator Frequency

fO

NOTE4

127

150

173

KHz

Output Leakage

Current

IL

Output=0VNOTE1, 3

100

μA

Output=-0.9VNOTE5

2

mA

Quiescent Current

IQ

NOTE3

5

mA

Standby Current

ISTBY

/EN Pin=5V

100

200

μA

/EN Pin Input Level

VIH

Low (ON)

1.3

0.6

V

VIL

High (OFF)

2.0

1.4

IH

VLEVEL= 2.5V (OFF)

5

15

μA

IL

VLEVEL= 0.5V (ON)

0.02

5

NOTE1: No diode, inductor or capacitor connected to output pin.

NOTE2: Feedback pin removed from output and connected to 0V to force the output transistor switch ON.

NOTE3: Feedback pin removed from output and connected to 5V and the ADJ version

NOTE4: The switching frequency is reduced when the second stage current limit is activated.

NOTE5: VIN = 40V.

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